>> reporter: i think he made a very clear swipe at those who have been remembering nelson mandela but of course, people who actually do not by any stretch of the imagination follow in his footsteps at all. i think the handshake in the full, you know, reflection of history which might be in the next quarter of an hour is going to be taken as a handshake. it was a diplomatic situation in which there were a number of leaders who had been appointed to speak. they were all on that dais, including castro and the president of brazil and other leaders, and president obama came up to take his place at the podium and in so doing, had to physically pass those leaders, even those with whom he had no relation and one of them was raul castro, and he shook his hand. he's a polite man. this was a diplomatic gathering. and then on he moved to the president of brazil, and he kissed her on both cheeks even though she canceled a state visit to washington, why, because she was so cross about the nsa and the spying and the spying and eavesdropping on her. so you know, you could have it all ways here. the p